With three simple elements -- RollFit XT Seal, lightweight EasyFrame & VentiCool Headgear -- working in harmony, the F&P Vitera CPAP/BiPAP Mask revolutionizes full face mask comfort. Vitera's full face seal rolls and flexes during sleep to create an individual, adaptive fit. The low-profile, EasyFrame provides a clear line of sight; and VentiCool Headgear fits naturally to improve comfort for active sleepers.